feat(website): SEO improvements — icons, structured data, redirects (#1435)

- Replace the 1200x628 OG banner being used as favicon with proper square
  icons (32/180/192/512) generated from the Robyn logo; fix the manifest
  icon declaration that claimed 512x512 for the banner
- Fall back to https://robyn.tech when NEXT_PUBLIC_SITE_URL is unset so the
  RSS/JSON feed links no longer render as undefined/rss/feed.xml
- Normalize trailing slashes in the sitemap siteUrl the same way
- Add LinkedIn, X, and PyPI to the Organization sameAs structured data
- Add keywords to the SoftwareSourceCode structured data
- Make the /documentation -> /documentation/en redirect permanent (308)
  so link equity is passed
- Align the Twitter card handle with the project account (@robyn_oss)

Author: sansyrox

docs_src/next-sitemap.config.js

@@ -1,5 +1,7 @@
 /** @type {import('next-sitemap').IConfig} */
-const siteUrl = process.env.NEXT_PUBLIC_SITE_URL || 'https://robyn.tech'
+const siteUrl = (
+  process.env.NEXT_PUBLIC_SITE_URL || 'https://robyn.tech'
+).replace(/\/+$/, '')
 
 module.exports = {
   siteUrl,

docs_src/next.config.mjs

@@ -29,7 +29,7 @@ const nextConfig = {
       {
         source: '/documentation',
         destination: '/documentation/en',
-        permanent: false,
+        permanent: true,
       },
     ]
   },

docs_src/public/apple-touch-icon.png

@@ -8,7 +8,12 @@
   "theme_color": "#000000",
   "icons": [
     {
-      "src": "/robynog.png",
+      "src": "/icon-192.png",
+      "sizes": "192x192",
+      "type": "image/png"
+    },
+    {
+      "src": "/icon-512.png",
       "sizes": "512x512",
       "type": "image/png"
     }

docs_src/public/favicon-32x32.png

@@ -3,7 +3,7 @@ import { useRouter } from 'next/router'
 
 const SITE_URL = (process.env.NEXT_PUBLIC_SITE_URL || 'https://robyn.tech').replace(/\/+$/, '')
 const DEFAULT_OG_IMAGE = `${SITE_URL}/robynog.png`
-const TWITTER_HANDLE = '@robaborobyn'
+const TWITTER_HANDLE = '@robyn_oss'
 const SITE_NAME = 'Robyn Framework'
 
 function escapeJsonLd(obj) {
@@ -120,6 +120,14 @@ export function SoftwareApplicationJsonLd() {
     license: 'https://opensource.org/licenses/BSD-2-Clause',
     operatingSystem: 'Cross-platform',
     runtimePlatform: 'Python 3.10+',
+    keywords: [
+      'Python web framework',
+      'async web framework',
+      'Rust runtime',
+      'REST API',
+      'WebSockets',
+      'high performance',
+    ],
     author: OrganizationJsonLd(),
     offers: {
       '@type': 'Offer',
@@ -139,6 +147,9 @@ export function OrganizationJsonLd() {
     sameAs: [
       'https://github.com/sparckles/robyn',
       'https://discord.gg/rkERZ5eNU8',
+      'https://www.linkedin.com/company/robyn-framework/',
+      'https://twitter.com/robyn_oss',
+      'https://pypi.org/project/robyn/',
     ],
   }
 }

docs_src/public/icon-192.png

@@ -36,6 +36,10 @@ const modeScript = `
   }
 `
 
+const SITE_URL = (
+  process.env.NEXT_PUBLIC_SITE_URL || 'https://robyn.tech'
+).replace(/\/+$/, '')
+
 export default function Document({ __NEXT_DATA__ }) {
   const locale = __NEXT_DATA__?.locale || 'en'
 
@@ -46,14 +50,16 @@ export default function Document({ __NEXT_DATA__ }) {
         <link
           rel="alternate"
           type="application/rss+xml"
-          href={`${process.env.NEXT_PUBLIC_SITE_URL}/rss/feed.xml`}
+          href={`${SITE_URL}/rss/feed.xml`}
         />
         <link
           rel="alternate"
           type="application/feed+json"
-          href={`${process.env.NEXT_PUBLIC_SITE_URL}/rss/feed.json`}
+          href={`${SITE_URL}/rss/feed.json`}
         />
-        <link rel="icon" type="image/png" href="/robynog.png" />
+        <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png" />
+        <link rel="icon" type="image/png" sizes="192x192" href="/icon-192.png" />
+        <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png" />
         <link rel="manifest" href="/site.webmanifest" />
         <meta name="theme-color" content="#000000" />
       </Head>